W102 ALL IN 1 POWER CABLE.
W102 All in One Power HUB Overvoltage Protection Extender for IP Phone Service Dedicated Power Cable
1.High quality power HUB
2.5V protects the Phone from being killed
3.Voltage protection extender with USB
4.More than 4.8V automatically cut off the output and the busser alarm
5. Supports all types of DC 5V 1Amp to 30V 5Amp